Index in books.



J. H. VIESER.

INDEX IN BOOKS.

APPLICATION FILED MAR. 8, 1911.

. 999,001, Patented July 25,1911.

UNITED STATES PATENT OFFICE.

JOHN .H. VIESER, 01E CHICAGO, ILLINOIS.

' I DEX-1N BOOKS.

Specification of Letters Patent. Patented 1 1911 Application filed March8, 1911.

Serial No. 613,120.

To all whom it may concern':

Be it known that I, JOHN H. Vmsnn, a citizen of the United States, and aresident of the city of Chicago, county of Cook, and State of Illinois,have invented certain new and useful Improvements for Indexes in Books,of which the followingis a specification.

My invention relates to improvements in indexes for books, and has forits object the production of a device of this character, which will bein the nature of an attachment, that is, one which may be readily andeasily attached to a book already in -use..

A further object is the production ofan index as mentionedwhich will beof durable and economical construction and etficient in use.

Other objects will appear hereinafter.

With these objects in view my invention consists in an indexcharacterized as above mentioned and in certain details of constructionsand arrangements of parts all as w1ll be hereinafter more fullydescribed and particularly pointed out in the appended claims.

My invention will be more readily understood by reference to theaccompanying drawing forming a part of this spec fication, and in which-Figure 1 is .a perspective view of one of the index sheets included inthe construction,

detached, Fig. 2 is a perspective view of the frame for securing theindex sheets together,

Fi 3 is an enlarged sectional detail of one en of said frame, and Fig. 4is a perspective view of the book to which is applied an index embodyingthe invention.

The preferred form of my invention as illustrated in the drawingcomprises a plurality of index sheets 1, each of the latter, asillustrated in Fig. 1 being preferablyof rectangular form and formed ofany sultable material, paper or cardboard belng preferably employed.Arranged at the rearward edge of each of the sheets 1 is a pref erablymetallic bar 2, the latter being secured in position upon said sheet bymeans of a metallic binding 3 which is rig dly secured upon the rearwardedge of sa1d sheet through the medium of rivets 41. Said bar 2 and thebinding 3 are of an exceedingly thin construction so as to adapt thesheet 1 for arrangement between the leaves of a book without unseemlybulging of the latter,

as will be readily understood. Formed at the respective extremities ofeach of the bars 2 are spherical enlargements 5. Formed at a projectingear 6, the ears 6 when the index is arranged upon a book, projectingfrom the front edges of the leaves of the latter, as clearly shown inFig. 4 to serve as means of designating particular divisions in thebook, said ears when so serving being provided with charactersindicative of the places they mark in the book.

The sheets 1 are held in proper ppsition between the leaves of the bookthrough the substantially semicircular plates 7 which are arranged atthe upper and lower edges of the book adjacent the back thereof. Saidplates 7 are detachably connected through the medium of an elongated baror connectlng member which is adapted to extend medially andlongitudinally of the back of the book adjacent thereto, said connectingand the bar portion 9 the ,o'uterextremities of the members 8 andQ-being flared and die 10. The adjacentv ends of the members 8 and 9 areinthreaded connection as clearly illustrated thus affording meanswhereby the distance between the plates 7 may be readily varied in orderto adapt said frame for arrangement upon books of difl'erent heights. 1

.plate 7 are arcuate or semicircular grooves '11, the outer open ends ofsaid grooves being closed by plates 12 which are secured to the forwardedges of the members 7 by such cross sectional form as to adapt the sameto snugly receive the outer ends of the bars 2 as clearly shown 1n Fig.3, the inner portions of said groovesbeing enlarged'to snugly receivethe enlargements 5 at the extremities of said bars so that when theextremities of said'barsf-arein engagement with said grooves, the samewill-be locked therein against -longitudinal movement, saidtransversely, that is; longitudinally of said grooves. Provided adjacentone of the extremities of each of the grooves. 11 is an enlargement 1awhich serves as an entrance slot through which the enlargement 5 may beinserted into engagement with the groove -11. A

With an index ofthe construction as set the forward edges of each of thesheets 1 istachably connectedwith the plate 7 by screws medium of aframe comprising two similar member comprising the tubular portion 8Provided in the adjacent surfaces of the v means ofiscrews 13. Thegrooves 11 are of bars being however permitted to move freely,

- 25 be manufactured at a low cost.

forth when it is desired to arrange the same in a book, the plates 7 arefirst disconnected, this being done by removing the screws 10. Thesheets 1 are then arranged between the 5 plates 7 with the extremities 5of the bars 2 thereof engaging the grooves 11 in the .man

ner as above described. The sheets 1 are now slid into position betweenthe leaves of the book at the particular locations desired,

the plate 7 being drawn rearwardly upon the upper and lower edges of thebook until the rearward or curved edges of said plates register with thecurved back of the book. The connecting member is now adjusted by 15threading the members 8 and 9 together so as to adapt the outerextremities thereof for connection with the plate 7, such connectionbeing effected by the replacement of the screws 10. Thus it will be seenthat an index is provided which is adapted for arrangement in a bookalready bound, and in which the index leaves are free for adjustment asdesired between the leaves of the book. The device is of simpleconstruction hence may The same may be readily and quickly applied to abook and when in operative position the same is adapted to eflicientlyserve in the capacity for which the same is designed.

While I have illustrated and described the preferred construction forcarrying my invention into effect this is capable of variation andmodification without departing from the spirit of the invention. Itherefore, do not wish to be limited to the precise details ofconstruction as set forth, but desire to avail myself of such variationsand modifications as come within the scope of the appended claims.

40 Having described my invention what I claim as new and desire tosecure by Letters Patent is:

1-. An index of the character described comprising a plurality of indexsheets having projecting studs at opposite edges;

means for loosely securing said sheets together, said means comprisingtwo opposingly arranged plates having grooves therein adapted forengagement by said sheet studs; and means for securing said platestogether, inspaced relation, substantially as described.

2. An index of the character described comprising a plurality of indexsheets having projecting studs at opposite edges;

means for loosely securing said sheets together, said means comprisingtwo opposingly arranged plates having ooves in their adjacent surfacesadapted or engagement by the studs of said sheets; and means connectedwith and extending between said plates for securing the latter together,in spaced relation, substantially as described.

3. An index of the character described comprising a plurality of indexsheets haveeaoor ing projecting studs at opposite edges; means forloosely securing said sheets together, saidmeans comprising two parallelspaced plates having grooves in their adjacent surfaces adapted forloose engage ment by the studs of said sheets, and means for detachablysecuring said plates together, in spaced relation, substantially as described.

4. An index of-the character described comprising a plurality of indexsheets having projecting studs at opposite edges;

means for loosely securing said sheets together, said meanscomprising-two parallel spaced plates having grooves in their adjacentsurfaces for loose en agement by the studs of said sheets, theextremities of said studs being enlarged for locking engagement withsaid grooves, the latter in cross section being enlarged correspondinglyat their inner ends; and means connected with and extending between saidplates for securing the latter together, in spaced rela tion;substantially as described.

5. The combination with a book of an in dex therefor, said indexcomprising a plurality of index sheets adapted to be arranged betweenthe leaves of said book; studs projecting from the upper and lower edgesof said sheets at the inner edges of the latter;

means for loosely securing said sheets together, said means comprisingtwo parallel plates arranged at the upper and lower edges of said bookadjacent the back thereof, the adjacent surfaces of said plates beingprovided with grooves for loose engagement by the outer ends of saidsheet studs; and means .for detachably securing said plates together, inspaced relation, substantially as described.

6. The combination with a book of an index therefor, said indexcomprising a plurality of index sheets adapted to be arranged betweenthe leaves of said book; a bar arranged at the inner edge of each of110. said sheets, the ends of said bars projecting beyond the upper andlower edges of said sheets; means for loosely securing said sheetstogether, said means comprising two parallel plates arranged at theupper and lower edges of said book adjacent the back thereof, theadjacent surfaces of said plates being provided with grooves for looseengagement by the outer ends of said bars,

the extremities of said bars being enlarged for locking engagement withsaid grooves,

the latter in cross section being of a form corresponding with that ofthe ends of with bars; and means for detachably securing said barstogether, in spaced relation, substantially as described.

7. The combination with a book of an index therefor, said indexcomprising a plurality of index sheets-adapted to be arranged betweenthe leaves of said book; a

bar arranged at the inner edge of each of said sheets, the ends of saidbars projecting beyond the upper and lower edges of said sheets; meansfor loosely securing said sheets together, said means comprising twoparallel plates arranged at the upper and lower edges of said bookadjacent the back thereof, the adjacent surfaces of said plates beingprovided with grooves for loose'en. gagement by the outer ends of saidbars, the extremities of said bars being enlarged for locking engagementwith said'grooves, the latter in cross section being of a formcorresponding with that ofthe ends of said bars; and longitudinallyadjustable means connected with and extending between said plates forsecuring the latter together, in

spaced relation, substantially as described.

8. The combination with a book of an index therefor, said indexcomprising -a plurality of index sheets adapted to be arranged bet-weenthe leaves ofsaid book; a bar arranged at the inner edge of each of saidsheets, the ends of said bars projecting beyond the upper and loweredges of said sheets; means for loosely securing said sheets together,said means comprising two parallel plates arranged at-"the upper andlower edges of said book adjacent the back thereof, the adjacentsurfaces of said plates being provided with grooves for loose en-'gagement by the outer ends of-said bars, the extremities of said barsbeing enlarged for locking engagement with said grooves, the

extending between said plates and having its K ends detachably securedthereto, substantially as described.-

9. The combination with a, book of an index therefor, said indexcomprising a plurality of index sheets adapted to be arranged betweenthe leaves of saidbook;

studs projecting from theupper and lower edges of said sheets at theinner edges of the latter; means for loosely securing said 'sheetstogether, said means comprising two arallel. plates arranged at theupper and ower edges of said book adjacent the back thereof, theadjacent surfaces of said platesbeing provided with arcuate grooves forloose engagement by the outer ends of. said sheet studs, the curvatureof said groove corresponding with the transverse curvature of the backof said book, and means for detachably securing said plates together, inspaced. relation, substantially as described. In testimony whereof Ihave signed my name to this specification in the .presence of twosubscribing witnesses.

JOHN H. VIESER.

' Witnesses? HELEN F. LILLIs, JOSHUA R. H. Po'rTs.

